5 Adastra Avenue Hassocks West Sussex BN6 8DP

1. 23 Jan 2023

   Received by Mid Sussex

2. 26 Jan 2023

   Validated

   Checked as complete and ready for consideration.

3. 23 Mar 2023

   Decision issued: Permission

4. 31 Jul 2026

   Added to PlanIndex

Mid Sussex granted permission on 23 March 2023, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• 9 Adastra Avenue Hassocks West Sussex BN6 8DP

  DM/26/0655 Submitted 13 Mar 2026 50 yards away

  Proposed ground floor rear extension.

  Granted Householder Extension 8 docs
  Domestic

• 85 Grand Avenue Hassocks West Sussex BN6 8DG

  DM/26/0799 Submitted 27 Mar 2026 150 yards away

  Loft conversion with gable-end and rear dormer.

  Granted Householder Loft or dormer 8 docs
  Domestic

• 70 Grand Avenue Hassocks West Sussex BN6 8DE

  DM/23/0536 Submitted 24 Feb 2023 150 yards away

  Front addition to form porch and cloakroom.

  Granted Householder Extension 9 docs
  Small domestic

• 5 Orchard Lane Hassocks West Sussex BN6 8QE

  DM/25/2100 Submitted 19 Aug 2025 150 yards away

  Conversion and first floor extension of existing 2/3 bedroom bungalow to 4 bedroom house, demolition of existing rear conservatory, erection of a single storey extension, partial conversion of garage into utility, remodelling of existing bungalow roof to accommodate bedrooms, solar panels and associated landscaping.

  Granted Householder Extension Demolition 27 docs
  Small domestic

• 9 Mackie Avenue Hassocks West Sussex BN6 8NH

  DM/26/0358 Submitted 11 Feb 2026 150 yards away

  Loft conversion including the addition of a flat-roofed rear dormer, two smaller hipped side dormers and the addition of one roof window.

  Granted Lawful development Loft or dormer Windows or glazing 16 docs

• 9 Mackie Avenue Hassocks West Sussex BN6 8NH

  DM/26/0359 Submitted 11 Feb 2026 150 yards away

  Proposed single storey rear extension.

  Granted Householder Extension 22 docs
  Small domestic

• ,DM/26/1028 Withdrawn

  6 Tate Crescent Burgess Hill West Sussex RH15 8TE

  Proposed partial conversion of attached garage to habitable accommodation. Fenestration alterations.

  Received 24 Apr, published by the council 31 Jul 2026 Lawful development
• DM/26/1052 Granted

  5 Hickmans Lane Lindfield Haywards Heath West Sussex RH16 2BQ

  New porch, rear box dormer loft conversion, and internal alterations.

  Received 27 Apr, published by the council 31 Jul 2026 Lawful development
• DM/26/0917 Refused

  20 Royal George Road Burgess Hill West Sussex RH15 9SD

  Proposed garden building

  Received 10 Apr, published by the council 31 Jul 2026 Lawful development
• DM/26/1019 Granted

  97 Leylands Road Burgess Hill West Sussex RH15 8AA

  Proposed loft conversion and rear extension

  Received 23 Apr, published by the council 31 Jul 2026 Lawful development
• DM/26/1038 Granted

  41 College Lane Hurstpierpoint Hassocks West Sussex BN6 9AD

  Demolition of 2no existing first-floor rear (north) elevation dormers, to be replaced with a new, full width dormer. A new 3m2 porch will be added at ground floor on the east elevation.

  Received 27 Apr, published by the council 12 Aug 2026 Lawful development